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This plastic cover wasn’t included with the new battery so I placed the original one back in. Was it supposed to go back in? This detail wasn’t clear since the original cover didn’t fit exactly over the newer battery connector. Plus any stickiness of adhesive that may have been there was gone.

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An interposer is the name for an interface that links one electrical connection to another. In this repair, it is the board connecting the battery to logic board.

Lift the Interposer off the logic board and remove it.

Removing this board will ensure that the battery remains disconnected throughout your repair, preventing your computer from accidentally powering on. It's also a good idea to take it out so it doesn't fall out unexpectedly.

you must lift it absolutely vertically, or it fouls against the locator pin in the corner- you can easily get the impression that it won’t come over the end of this pin- almost like it’s rivetted in. it isn’t. get a good grip on it with the tweezers in the centre hole & one of the sides, & lift it STRAIGHT up.

This was the hardest part of the repair for me. The iSight cable was really lodged in its socket. "Walking" the connector as the guide suggests -- i.e. pushing on each side alternately at a 45 degree angle (with more force than I expected) -- eventually worked.

What does the J0, J1 and J2 connections represent on the Airport Card? I had an issue where the wifi and bluetooth went out and said "Not Available" so I replaced the I/O board and the airport card. The Wifi now works but Bluetooth is still showing not available. I wanted to know which connection meant what and to see if I could fix the issue. I have reseated the cables, deleted the Bluetooh.plist file and reset SMC, but bluetooth still appears as Not Available.

The long-sleeved and short-sleeved antenna cables are switched compared to this guide, on my Macbook Pro A1425. Maybe note which order they are in on your machine, since apparently they differ. http://i.imgur.com/r9g9ZXS.jpg

Likewise, the antenna connectors on my Macbook A1425 Late 2012 Retina were not in the order as described in this guide. From the fan side the connectors should be - no sleeve, long sleeve, short sleeve

As two other users have mentioned, the long-and short-sleeved cables for my late 2012/early 2013 A1425 were not in the order mentioned in the guide. If the laptop is positioned with fan in the upper left corner, the order (left to right) is short sleeve, long sleeve, no sleeve. If it is positioned as it is in the photo with the fan in the lower right, the order (left to right) is no sleeve, long sleeve, short sleeve.

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perfect tutorial! I fixed my screen completely destroyed falling down from my hands while a was falling asleep. Bought a new one on eBay (not original but perfect with the exception of the case slightly different in color and "texture".

This worked really well. The only issue I had was uninstalling the camera. The instructions to pull the data display cable parallel to logic board made sense in step 14. Unfortunately I didn't understand the similarities in step 10. Is it possible to repair the camera now that the slot is completely broken?